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252476

Sigma-Aldrich

Lactic acid solution

ACS reagent, ≥85%

Synonym(s):

2-Hydroxypropionic acid solution, DL-Lactic acid solution

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100 G
$34.18
500 G
$78.57
1 KG
$118.75
2.5 KG
$235.80

About This Item

Linear Formula:
CH3CH(OH)CO2H
CAS Number:
50-21-5
Molecular Weight:
90.08
Beilstein/REAXYS Number:
5238667
MDL number:
MFCD00004520
UNSPSC Code:
12352100
PubChem Substance ID:
24855212
NACRES:
NA.21

$34.18

List Price$37.40Save 9%
Web-Only Promotion

Available to ship onApril 29, 2025Details

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grade

ACS reagent

Quality Level

200

assay

85.0-90.0%

concentration

≥85%
85.0-90.0% in H2O

impurities

H2SO4, passes test (darkened)

ign. residue

≤0.02%

refractive index

n20/D 1.4251

density

1.209 g/mL at 25 °C

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.002%

cation traces

Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP)

functional group

carboxylic acid
hydroxyl

SMILES string

CC(O)C(O)=O

InChI

1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)

InChI key

JVTAAEKCZFNVCJ-UHFFFAOYSA-N

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Application

Lactic acid solution has been used in the preparation of poly(lactic acid) (PLA)/lactic acid (LA) blends to enhance the biodegradability rate of PLA.[1]

Other Notes

Contains varying amounts of intermolecular esterification products.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1C

supp_hazards

EUH071

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

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Questions

1–4 of 4 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  3. 해당 제품의 농도를 나타내는 80-90%는 질량기준인지 부피 기준인지 알려주시면 감사하겠습니다.

    1 answer

    1. The product concentration is 85.0 to 90.0% and this is on an m/m basis.

      Helpful?

  4. 유통기한이 보통 얼마나 될까요? 예전에 구비하고 사용을 오래 안 해서 재구매 해야 할지 검토 중입니다.

    1 answer

    1. This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment. For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

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